News

PED-Positive Submissions: Half of New Positive Results in Iowa

27 December 2013

US - The total number of swine accessions and diagnostic case submissions testing positive for the Porcine Epidemic Diarrhoea (PED) virus now stands at 1,764, writes Jackie Linden.

By farm class, this figure for the total number of positive laboratory swine accessions/diagnostic case submissions as follows between the weeks of 15 April and 15 December: suckling, 379 (+24); nursery, 340 (+29); grower/finisher, 538 (+23); sows/boars, 215 (+7) and 308 (+38) unknown. The total is up 119 from the previous week.

No states have reported their first positive results in the last week and so the total number of states affected remains at 20. Those states with 20 or more positive tests are: Iowa, 621; North Carolina, 268; Oklahoma, 267; Minnesota, 177; Kansas, 133; Indiana, 53; Ohio, 48; Illinois, 40; Colorado, 35; Pennsylvania, 28 and Texas, 23.

For the most recent week, Iowa once again leads the 'league table' in the number of new positive results, accounting for 62 of the total of 119 new cases, followed by Minnesota with 24 and North Carolina with 10.

In mid-June, the reporting system was adjusted. For the weeks prior to 16 June, laboratories were able to provide diagnostic case submissions as well as the number of premises testing positive for the PED virus (PEDv). Since 16 June, the data refer only to diagnostic cases submissions ('swine accessions').

From the week of 16 June to week of 15 December, the total number of biological (swine) samples testing positive is 5,137, up from 5,487 the previous week (+349). The most-affected states by this measure are: North Carolina, 1,569; Iowa, 1,090; Oklahoma, 988; Kansas, 609; Minnesota, 425; Ohio, 175; Illinois, 141; Colorado, 115 Pennsylvania, 84; Texas, 74 and Indiana and Missouri, both with 68. Other states, where positive, reported 50 positives or fewer.